"Sun, 11 Aug 2024 15:20:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240811
Only TIME
15:20:15
General datetime
2024-08-11 15:20:15Z
For Database
2024-08-11 15:20:15
For HTTP1.1
Sun, 11 Aug 2024 15:20:15 GMT